Dana 20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blue70k5 · 10-19-2008, 02:26 AM

Ok guys, new to the site... I just bought a 1970 blazer with a 350/465 but it appears to have a dana 20 instead of the 205. I have heard of these cases appearing in blazers from 69-73ish but i wasn't aware that the came with v8 trucks. Anyone ever seen this setup? Also, how strong is the dana 20? I really dont think i need to swap in 1 205 as i will only be doing light wheeling but I just wanted to see what you guys thought. Another reason for wanting to keep the dana is that a PO put a pto unit with a ramsey 8k winch on it.

Blazer1970 · 10-19-2008, 06:30 AM

I am thinking that the Dana 20 didn't have PTO provisions - is your PTO attached to the tranny or the t-case? If the transfer case is working correctly, there is no reason to swap it out. The D20 is plenty strong for normal use behind a V-8. The 465/D20 combo was pretty common in Blazers/Jimmys and was used behind all the motors. For some reason, some Blazers got 465/205 combos also - a '72 I parted out came that way.

*FormerMember* · 10-19-2008, 08:21 AM

D20's a decent t-case that can handle a fair bit of power.

They do have PTO provisions. Of course, a NP205 does as well.

blue70k5 · 10-19-2008, 10:45 AM

Ok, thaks guys. I think I'm gonna go ahead and stick with the dana 20 but does anyone know a good parts supply place for them? If I decide to take the pto off where can i get a cover for the port?? Lots of info on the jeep version but very little on chevys and I am not sure whether the case design is identical or not. thanks

**Yukon Jack** · 10-20-2008, 11:45 AM

Don't know of too many people on here with the Dana 20, but there is at least one member. You might want to become a subscribing member and post a want to trade post in the classified - someone might be interested in buying your pto and trading their pto cover as part of the deal.

blue70k5 · 10-20-2008, 11:54 AM

Ok, thanks for th tip yukonjack. I have been meaning to subscribe anyway so this would be a good excuse..

10-19-2008, 02:26 AM	#1
blue70k5 Registered User Join Date: Oct 2008 Location: Galveston, Tx Posts: 114	Dana 20 Ok guys, new to the site... I just bought a 1970 blazer with a 350/465 but it appears to have a dana 20 instead of the 205. I have heard of these cases appearing in blazers from 69-73ish but i wasn't aware that the came with v8 trucks. Anyone ever seen this setup? Also, how strong is the dana 20? I really dont think i need to swap in 1 205 as i will only be doing light wheeling but I just wanted to see what you guys thought. Another reason for wanting to keep the dana is that a PO put a pto unit with a ramsey 8k winch on it.

10-19-2008, 06:30 AM	#2
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	Re: Dana 20 I am thinking that the Dana 20 didn't have PTO provisions - is your PTO attached to the tranny or the t-case? If the transfer case is working correctly, there is no reason to swap it out. The D20 is plenty strong for normal use behind a V-8. The 465/D20 combo was pretty common in Blazers/Jimmys and was used behind all the motors. For some reason, some Blazers got 465/205 combos also - a '72 I parted out came that way. __________________ Tim

10-19-2008, 08:21 AM	#3
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Dana 20 D20's a decent t-case that can handle a fair bit of power. They do have PTO provisions. Of course, a NP205 does as well.

10-19-2008, 10:45 AM	#4
blue70k5 Registered User Join Date: Oct 2008 Location: Galveston, Tx Posts: 114	Re: Dana 20 Ok, thaks guys. I think I'm gonna go ahead and stick with the dana 20 but does anyone know a good parts supply place for them? If I decide to take the pto off where can i get a cover for the port?? Lots of info on the jeep version but very little on chevys and I am not sure whether the case design is identical or not. thanks

10-20-2008, 11:45 AM	#5
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,689	Re: Dana 20 Don't know of too many people on here with the Dana 20, but there is at least one member. You might want to become a subscribing member and post a want to trade post in the classified - someone might be interested in buying your pto and trading their pto cover as part of the deal. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

10-20-2008, 11:54 AM	#6
blue70k5 Registered User Join Date: Oct 2008 Location: Galveston, Tx Posts: 114	Re: Dana 20 Ok, thanks for th tip yukonjack. I have been meaning to subscribe anyway so this would be a good excuse..



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